Differences between the 2 installation types.
Hello there developers,
As I started to install the IRIS for community editing I came across this interface. (Image attached below)
Is there a major difference in these 2 types of installations and is there a place where I can refer with regard to this in detail please?
Please let me know.
Thank you in advance.

Comments
For any new application you'll want to select Unicode. 8-bit would be used for legacy applications that were designed for 8-bit character sets.
It is just the difference between the available character sets.
8 bits: it has 128 - 255 character points.
AND
Unicode: has a total of 143,859 characters.
8 bit was used in the legendary systems in h=the late 80's and 90's, But now what is being used is the Unicode as it can accommodate more character values.
Hope this is useful.
Cheers.